Yes ya lazy git do at least 500
Sounds like you need some protein man. I was doing 200 a day locked up at 140 lbs
You don't have a lot to push up. :P Bulk up, train down, Bulk up, train down.
Learn Krav Maga. Need to learn to defend yourself at that height and weight. And for your confidence. Push-ups are nice but like a band aid on a cancerous tumor.
Your body will answer that question for you. You should give your body rest though. Do you feel sore? Those are micro-fissures in the muscle. Tiny tears/cuts. You need to let those heal, or you'll just have muscles full of scar tissue. Also, with back issues, sit-ups aren't the best idea. Core exercises will give you greater benefit with less stress on your back.
Idk I like army guys way:D
Do as many as you feel comfortable with honey. Seek medical advice for the whey protein supplements though as there has been research out recently that doesn't recommend this as it can do damage to the internal organs and it can lead to mass production of fat cells that are hard to shift :/ please seek medical advice in regards to the whey protein supplements that is all I'm going to say xoxo all the best
Be that as it may honey, I'd still seek medical advice, as it could be damaging your insides that's all xoxo all the best though and good luck ;9
pressups are easy, you don't really need strength to do them, try pullups you weakling.
pressups are pushups lol. I was joking anyway. You do plenty
Bro... Do you even lift?